Warren Buffett’s Berkshire Hathaway increased its stake in SiriusXM, now holding 32% of the satellite radio company. Berkshire bought over 3 million shares for over $80 million, according to an SEC filing. The move follows Liberty Media’s September merger, which reshaped its media empire and spun off the Atlanta Braves. JPMorgan analysts reopened SiriusXM with an underweight rating, warning of demographic challenges, and a pause in stock buybacks until 2027. SiriusXM’s stock surged 8% after Berkshire’s disclosure despite long-term growth concerns and a 50% year-to-date decline.